# Ultra-pure wet chemicals: Feedstocks

Why the raw acid barely matters to the final price

Source page: https://www.materialinsights.org/chemicals/wet_chemicals/feedstocks/

What this tab covers What it is made from and what it feeds: the raw materials and energy per tonne with their share of cost (linked to the commodity table), who is low-cost and why, and the chemicals made from it.

Feedstocks are commodity chemicals, so raw material cost is small relative to price. What matters is a reliable base supply with low starting impurities, ultra-pure water, purification equipment and clean packaging close to fabs.

#### Inputs per tonne

| Input | Quantity per tonne | Role | Share of cost | Source |
|---|---|---|---|---|
| [S Sulfur](https://www.materialinsights.org/commodities/sulfur/) | about 1 t technical acid per t electronic grade (indicative) | SPM cleaning | small (indicative) | sulphuric acid tile; indicative |
| [F Fluorspar](https://www.materialinsights.org/commodities/fluorspar/) | about 2.1 t acidspar per t HF (HF tile) | oxide etch and clean | small relative to price (indicative) | hydrofluoric acid tile |
| [Gas Natural gas](https://www.materialinsights.org/energy/natural_gas/) | not published | oxidiser and SC1 clean | small (indicative) | hydrogen peroxide and ammonia tiles |
| [NaCl Salt](https://www.materialinsights.org/commodities/salt/) | not published | SC2 metal clean | small | Indicative |
| [P Phosphate rock](https://www.materialinsights.org/commodities/phosphate/) | not published | silicon nitride etch | small | Indicative |
| [Oil Crude oil](https://www.materialinsights.org/energy/crude_oil/) | about 0.7 t per t IPA (stoichiometry) | drying solvent | small | stoichiometry |

#### Who is low-cost, and why

Not a commodity cost curve: Japanese and Korean suppliers with decades of purity know-how and plants near fabs win, and price is set by qualification and service. New entrants compete only after long qualification.

#### Raw materials on the commodity table
[S Sulfur](https://www.materialinsights.org/commodities/sulfur/)[F Fluorspar](https://www.materialinsights.org/commodities/fluorspar/)

## Other sections

- [Summary](https://www.materialinsights.org/chemicals/wet_chemicals/index.md)
- [Overview](https://www.materialinsights.org/chemicals/wet_chemicals/overview/index.md)
- [Correlation](https://www.materialinsights.org/chemicals/wet_chemicals/correlation/index.md)
- [Production route](https://www.materialinsights.org/chemicals/wet_chemicals/routes/index.md)
- [Production](https://www.materialinsights.org/chemicals/wet_chemicals/production/index.md)
- [Cycles](https://www.materialinsights.org/chemicals/wet_chemicals/cycles/index.md)
- [Trading](https://www.materialinsights.org/chemicals/wet_chemicals/trading/index.md)
- [Movement](https://www.materialinsights.org/chemicals/wet_chemicals/movement/index.md)
- [Regulation](https://www.materialinsights.org/chemicals/wet_chemicals/regulation/index.md)
- [Characteristics](https://www.materialinsights.org/chemicals/wet_chemicals/characteristics/index.md)
- [Emissions](https://www.materialinsights.org/chemicals/wet_chemicals/emissions/index.md)
- [Relationships](https://www.materialinsights.org/chemicals/wet_chemicals/links/index.md)